›› 2007, Vol. 28 ›› Issue (6): 1095-1102.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Three-dimensional effects in low strain integrity test of PCC pile

FEI Kang1，LIU Han-long2，ZHANG Ting2   

  1. 1. Institute of Geotechnical Engineering, Yangzhou University, Yangzhou 225009, China; 2. Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China
  • Received:2005-07-18 Online:2007-06-11 Published:2013-09-13

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Abstract: The objective of this paper is to present a theoretical evaluation of the capabilities of low strain integrity tests in estimating the pile length and integrity of PCC pile, a type of large diameter thin-wall cast-in-place concrete pile. One-dimensional and three-dimensional finite element modelling are performed to gain an understanding of the dynamic response of intact and defective PCC pile subjected to impulse loads. The three-dimensional effects in low strain integrity test of PCC pile are studied in detail. The result shows that the impact response of a PCC pile is affected by bending vibration, longitudinal vibration and waves reflected between the side boundaries at the surface of pile top. Based on the numerical results, suggested guidelines for selection of the locations of the hammer impact point and the recording point and test results interpretation of this new type of pile are given.

Key words: thin-wall cast-in-place concrete pile, low strain integrity test, finite element method

CLC Number: 

  • TU 435
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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